18865821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4987}}^1$

素因数の和:5100

約数の個数: 16

約数和(自身を含む): 27374144

約数和(自身を除く): 8508323

約数列:

[1, 3, 13, 39, 97, 291, 1261, 3783, 4987, 14961, 64831, 194493, 483739, 1451217, 6288607, 18865821]

約数ペア:

[(1, 18865821), (3, 6288607), (13, 1451217), (39, 483739), (97, 194493), (291, 64831), (1261, 14961), (3783, 4987)]